20000464

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5981}}^1$

素因数の和:6019

約数の個数: 40

約数和(自身を含む): 44506080

約数和(自身を除く): 24505616

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 5981, 11962, 23924, 47848, 65791, 95696, 113639, 131582, 227278, 263164, 454556, 526328, 909112, 1052656, 1250029, 1818224, 2500058, 5000116, 10000232, 20000464]

約数ペア:

[(1, 20000464), (2, 10000232), (4, 5000116), (8, 2500058), (11, 1818224), (16, 1250029), (19, 1052656), (22, 909112), (38, 526328), (44, 454556), (76, 263164), (88, 227278), (152, 131582), (176, 113639), (209, 95696), (304, 65791), (418, 47848), (836, 23924), (1672, 11962), (3344, 5981)]